JP4417253B2 - Belt tensioner with integral braking device - Google Patents

Belt tensioner with integral braking device Download PDF

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Publication number
JP4417253B2
JP4417253B2 JP2004522993A JP2004522993A JP4417253B2 JP 4417253 B2 JP4417253 B2 JP 4417253B2 JP 2004522993 A JP2004522993 A JP 2004522993A JP 2004522993 A JP2004522993 A JP 2004522993A JP 4417253 B2 JP4417253 B2 JP 4417253B2
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Japan
Prior art keywords
lever arm
arm
arm plate
housing
belt
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Expired - Fee Related
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JP2004522993A
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Japanese (ja)
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JP2005533228A (en
Inventor
クインタス,ジェイムズ,ジー.
Original Assignee
デイコ プロダクツ,エルエルシー
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Priority to US10/198,214 priority Critical patent/US7186196B2/en
Application filed by デイコ プロダクツ,エルエルシー filed Critical デイコ プロダクツ,エルエルシー
Priority to PCT/US2003/018562 priority patent/WO2004010024A2/en
Publication of JP2005533228A publication Critical patent/JP2005533228A/en
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Publication of JP4417253B2 publication Critical patent/JP4417253B2/en
Expired - Fee Related legal-status Critical Current
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/10Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1209Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
    • F16H7/1218Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means of the dry friction type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0802Actuators for final output members
    • F16H2007/081Torsion springs

Description

   The present invention relates to a belt drive system, and more particularly to a tension device such as a power transmission belt. Specifically, the present invention relates to a tensioning device that operates independently of the axial force applied to the tensioner to improve pulley alignment and improve tensioner life.

  In the automotive industry, various automotive accessories such as power steering pumps, oil / air pumps, air conditioners and alternators are operated by a single endless belt driven by a pulley connected to the engine crankshaft. Such a system is called, for example, an “S-shaped” drive belt system. To optimize the operating efficiency of the above accessories and other accessories, maintain the prescribed tension on the drive belt, improve the performance of these accessories, and lengthen the life of the belt. Is essential. Due to the length of the drive belt, the belt tends to stretch due to wear and vibration, which affects the operating characteristics of the belt drive accessory. Therefore, a belt tension device is used to apply a certain tension to the belt to compensate for the length of the belt stretched by the stretching action as described above. In this regard, USP 5,030,172, 5,443,424, 5,545,095, 5,718,649, 5,803,850 and 6,206,797 are conventional examples. . In addition, each gazette is used by referring to these patent numbers.

  In the case of a belt tensioner that is often adopted, the belt tensioner includes a fixed housing and an angular displacement lever arm having a belt engaging pulley. Coil springs are provided to reinforce the fixed housing and the angular displacement lever arm and displace the housing and lever arm toward the belt using tension that is adjusted according to the nature of the belt vibration. Despite the change in spring force, a substantially constant force can be applied to the lever and maintained.

  In order to prevent excessive vibration generated in the spring member, it is desirable to provide a braking means for the belt tensioner. Such means absorbs sudden impacts and prevents the whiplash action that occurs on the tensioner and drive belt. This braking means is particularly important when a belt tension is applied using a coil spring. This is because the natural frequency generated when the reverse force that varies depending on the belt is applied is an inherent action of the coil spring. Such fluctuations reduce the tension efficiency of the spring, but braking is essential for the system to continue to act on the pulsating device for an extended period of time without affecting the tension acting on the drive belt. is there.

  For example, in the case of the belt tension device proposed in USP 3,924,483 invented by Walker et al., A torsion spring is disclosed in which one of the automobile accessories is actuated by a pivot action in order to achieve a desired tension. ing. In the case of other tensioners of the above-mentioned type, a pair of torsion springs is used to engage the belt tension by operating the lever and idle pulley by pivot action, thus realizing an economical and compact unit. ing. Specifically, in this type of tensioner, a spring is attached to each side of the lever, and the lever is engaged with the lever and the housing so that the lever intervenes in the belt tension direction. Furthermore, the automotive industry recognizes that the automotive belt system has a vibration environment and recognizes its effect on spring vibration.

  USP 4,696,663 describes a belt tensioner comprising a fixed housing 12, a lever arm 30, and a torsion spring 20 that reinforces the housing and lever and biases the torsion spring 20 in the belt tension direction. The belt tensioner is provided with a brake 60, which is urged by a torsion spring and frictionally engaged with the housing wall 13. Since this torsion spring generates both tension on the lever and acting braking force, the braking amount is proportional to the belt tension.

  U.S. Pat. No. 4,473,362 describes an independent braking body 108 whose braking characteristics are not constant, but which varies depending on the position of the pivot structure 40 relative to the stationary structure 36. A coil spring is provided between the fixed structure and the pivot structure, and the pivot structure is moved from the first restricted position to the second control position by a spring force that increases as the pivot structure is displaced toward the belt. Elastically bias away. The inner peripheral portion of the braking body is relatively strongly engaged with the lower outer peripheral portion of the core member 48, and the engagement between the outer peripheral portion and the inner peripheral portion of the pivot structure is relatively weak. When the angle of the pivot structure changes between the first limit position and the second limit position, the outer peripheral portion of the brake body and the inner peripheral portion of the attachment portion of the contact surface slide, and the change in the angle is It changes according to the position of the structure. Similarly, since the amount of friction also changes, the torsional force necessary to exceed the frictional force also changes. For this reason, the arm exhibits a greater braking action in the belt releasing direction, which is advantageous.

USP 6,206,797, whose inventor is Quintus, discloses a belt tensioner structure that performs braking by increasing the friction between the spring bush arm and the spring case and the friction between the arm plate bush, the arm plate, and the arm. Has been. To increase the friction, the axial load applied to the tensioner component may be increased using a spring or deflection arm plate. According to this structure, although braking can be made efficient, the load added to the critical wear area | region essential in order to maintain pulley alignment becomes large. Thus, there is a need for a structure that solves the above problems.
USP 5,030,172 USP 5,443,424 USP 5,545,095 USP 5,718,649 USP 5,803,850 USP 6,206,797 USP 3,924,483 USP 4,696,663 USP 4,473,362 USP 6,206,797

  Accordingly, one object of the present invention is to provide a belt tensioner having a braking function independent of the axial force of the belt tensioner.

  Another object of the present invention is to provide a belt tensioner having a high level braking function with a small force applied to a critical wear region.

  Yet another object of the present invention is to provide a belt tensioner with improved pulley alignment.

  Yet another object of the present invention is to provide a belt tensioner with a longer life.

  Still another object of the present invention is to provide a belt tensioner assembling method capable of realizing an appropriate level of braking without accurately positioning an arm plate.

  According to the present invention, the above object can be realized by a belt tensioner having an integral damping device independent of an axial force acting on the belt tensioner. This braking device comprises an arm and a spring steel arm plate formed in a cup shape. The edge of the cup-shaped arm plate is configured to be a “finger” that acts as a spring and generates a force in the radial direction. A friction material is provided between the fingers and the arms to form a contact area. This contact area increases the friction between the arm and the arm plate and performs braking. As the friction material, a polymer-based material is used in a specific embodiment of the present invention. However, as far as the present invention is concerned, the friction material has a characteristic of effectively increasing the friction between the arm and the arm plate of the present invention. A combination of one or more suitable other materials can also be used. Further, according to the present invention, the friction material may be simultaneously formed on either the inner peripheral portion or the outer peripheral portion of the cup-shaped arm plate. When the friction material is co-molded into the cup-shaped arm plate, the belt tensioner may be sealed so that contaminants do not enter the braking cavity of the belt tensioner.

  The arm plate is key-fixed to the pivot means of the belt tensioner so that the arm plate is fixed so as not to rotate, and the friction material and the arm can move relative to each other. Since the braking force is independent of the axial force required to hold the tensioner device, the bushing provided on the tensioner to align and maintain the arms is less worn and the life of the tensioner is extended. Also, the tensioner assembly method of the present invention is an excellent method because it is not necessary to accurately position the arm plate in order to achieve an appropriate level of braking.

  The present invention realizes a high-level integral braking action while suppressing the force acting on the critical wear region, and improves pulley alignment and extends the life of the tensioner.

  The features of the present invention and the advantages of the present invention should become apparent from the preferred embodiments described in the accompanying drawings and the appended claims.

  FIG. 1 of the accompanying drawings is a view for explaining a belt tensioner of the present invention. As shown in the figure, the belt tensioner 10 is provided with a lever arm 12 and a lever arm 12 that project radially outward from the outer periphery 16 of the lever arm 12 to form a plurality of stoppers 14 that restrict the rotation of the lever arm 12. A housing 18, a tensioner arm plate 20 having a plurality of finger elements 22 that extend on the outer peripheral edge of a tensioner arm plate (braking device) 20 and act on a radial force, and locking that fixes the arm plate 20 to the housing 18. The member 24 is used. The lever arm 12 is further fixed to the lever arm 12 and extended from the lever arm 12 to connect the pulley 30, the mounting bolt or pin 32 and the mounting bolt or pin 32, and fix the pulley 30 to the support member 26. It has a support member 26 that receives and supports a pulley device 28 (FIG. 3) having a mounting opening 34 for it.

More specifically, as shown in FIGS. 2 and 3, the belt tensioner of the present invention is
A pivot shaft 42 extending along the longitudinal axis and forming an outer shaft end 44;
A housing 46 having a horizontal bottom portion 48 and a peripheral wall 50 extending perpendicularly to the horizontal bottom portion and having an inner peripheral wall surface 52 and an outer peripheral wall surface 54, is attached to the pivot shaft 42 and is rotatably fixed. Housing 46,
A lever arm 12 pivotally attached to the pivot shaft 42 and having a distal end 56 and a tubular proximal end 58, the tubular proximal end extending into the housing 46 and connected thereto;
A pivot bush 60 having an inner wall surface 62 and an outer wall surface 64 that align and maintain the lever arm 12, the inner wall surface 62 surrounding the pivot shaft 42 in the housing 46 and extending along the longitudinal axis. A pivot bush 60 axially disposed on the outer surface of the pivot shaft 42 so as to be adjacent to the outer surface of the provided sleeve 66;
A spring element 68, preferably a steel coil spring, connected to the housing 46 and the lever arm 12 to rotate the lever arm 12 in the belt tension direction about the longitudinal axis;
A spring bushing 70 disposed axially between the spring element 68 and the lever arm 12, the outer peripheral surface corresponding to the outer peripheral surface of the vertical peripheral side wall 50 of the housing 46 and the outer periphery of the tubular arm proximal end 58 of the lever arm A spring bushing 70 having an inner peripheral surface corresponding to the wall 72;
A pulley device 28 attached to the end of the lever arm 12 for receiving an endless drive belt (not shown) and applying tension to the endless drive belt when the lever arm is rotated in the belt tension direction. And an arm plate device having a cup- like arm plate 20, which is axially spaced from the upper end of the pivot shaft 42, and is preferably made of spring steel and fixed to the pivot shaft 42. An arm plate device that performs an integral braking action and applies tension to the endless drive belt of the drive system,
The arm plate device is
(A) a cup-shaped cavity having a peripheral edge 78 and an arm plate having a plurality of separating finger elements 22 extending to the peripheral edge 78; and (b) arranged between the finger elements 22 and on the surface of the arm plate 20. And a friction material 80 formed between the lever arm 12 and the arm plate 20 to form at least one contact area with high friction.

  If desired, a suitable polymer-based anti-friction tape 69, such as Teflon tape, may be disposed between the coils of the spring 68, as is commonly done.

The plurality of finger elements 22 are configured to face upward as a whole and have one or more angle surfaces 36. Each of these finger elements 22 acts as a spring and applies a force to the side wall 38 of the arm plate bush 40 in the radial direction. The arm plate bushing 40 to form a notch 41, so that the arm plate bushing 40 can easily engage the brake cavity of the lever arm 12. For example, when the finger element 22 is made of a rigid material, it can exert a spring-like action when the finger is bent radially upward. It is preferred to form one or more surfaces on the finger element, which can enhance the spring-like action and thus make the pressure more uniform and more durable. During braking, the finger element 22, the side wall 38 and the arm plate bush 40 of the arm plate 20 are rubbed.

A friction material 80 such as a wear-resistant plastic material is disposed between the finger element 22 and the lever arm 12. Examples of wear-resistant materials that can be used include polyamides (PA), polyetherimides (PEI), polysulfones (PS), polyethersulfones (PES), polyoxymethylenes (POM) such as polyacetals Polyether ether ketones (PEEK), polyphenylene sulfides (PPS), polyphthalamides (PPA) and polyphthalimides (PPI), and these are blends. A preferable friction material 80 is polyamide, specifically, nylon 6, nylon 4, nylon 9, nylon 11, nylon 12, nylon 66, nylon 610, nylon 611, or nylon 46. In the preferred embodiment of the present invention, a polyamide friction material 80 is co-molded on the arm plate 20. In this case, the friction material 80 is sealed so that contaminants do not enter the braking cavity by using a series of sealing means such as labyrinths or flanges or by bringing a portion of the arm plate bush 40 into contact with the lever arm 12. Form.

  A flare is formed at one end of the pivot bush 60 facing the horizontal bottom 48 of the housing 46. Further, a plurality of grooves 84 are formed in the pivot bush 60, and the grooves run in the longitudinal direction of the pivot bush 60. The pivot bush 60 is secured to the horizontal bottom 48 of the housing 46 by a corresponding number of small notches formed in the bottom inner corner of each of the ribs 82 projecting radially outward from the sleeve 66 on the bottom of the housing 46.

  The pulley device 28 includes a bearing 86 such as a ball bearing and attachment means such as a mounting bolt and a pin. The pulley device 28 is attached to the pulley arm 28 at the end of the lever arm 12. A plurality of protrusions 88 and recesses 90 are formed on the outer peripheral surface of the pulley 30 and are arranged in the circumferential direction around the pulley 30. The shape of the protrusion / recess may be V-shaped or truncated V-shaped, or any other effective shape.

  As mentioned above, although this invention was demonstrated about the preferred embodiment, this invention is not limited to these, Many changes and deformation | transformation are possible as well known to those skilled in the art. That is, the present invention is not limited to the details described above, but encompasses all modifications that fall within the scope and spirit of the claims.

1 is a top view of a belt tensioner having an integral braking device according to the present invention. FIG. FIG. 2 is a cross-sectional view of the belt tensioner of FIG. 1 taken along line 2-2. FIG. 2 is a perspective development view of the belt tensioner of FIG. 1.

Explanation of symbols

10: Belt tensioner,
12: Lever arm
20: arm plate,
22: finger element,
30: pulley,
42: Pivot shaft,
46: housing,
56: terminal,
58: Proximal end,
68: Spring element,
80: friction material.

Claims (10)

  1. In a belt tensioner having an integral braking device for use in applying tension to an endless drive belt of a drive system,
    This belt tensioner (10)
    Extending along the longitudinal axis, and a housing (46) having a pivot shaft forming the outer shaft end (44) (42),
    The mounted for rotation on the pivot shaft (42), a terminal (56) and a lever arm having a proximate end of the tubular (58) (12), the proximal end of the tubular (58) said housing ( was extended in 46) said lever arm which is connected thereto (12),
    A spring element (68) for pivoting said housing (46) and said lever arm said lever arm (12) the belt tension direction about the being articulated to the longitudinal axis (12),
    An arm plate bush (40) disposed in a braking cavity provided in the lever arm (12);
    The fixed to the pivot shaft (42) performs an integral braking action, an arm plate device exerting a tension on the endless drive belt of a drive system,
    The previous Symbol arm plate apparatus,
    (A) A spring separating finger element (22) formed into a cup-shaped cavity by extending a bent portion so as to protrude outward from the outer periphery of the peripheral edge portion (78) , the arm plate bush (40 and an arm plate (20) having side walls (the separation finger element which the action of the spring force 38) in the radial direction so as to press (22) in),
    Notches for (b) into engagement with the brake cavity (41), a not large contact area of the friction between the braking cavity and said arm plate (20) of the lever arm (12) The friction material (80) to be formed and the arm plate bushing (40), and
    Before Symbol belt tensioner (10) further,
    Receive attached to an endless drive belt before Symbol end (56) of the lever arm (12), and exerting a tension to the endless drive belt again to the lever arm (12) is rotated in the belt tension direction a pulley (30), the pulley before Symbol pulley before Symbol proximal end from (58) is separated in the axial direction of the (30) before Symbol ends fitted with (56) a pivot shaft (42) (30 A belt tensioner characterized by comprising:
  2. The housing (46) extends horizontally from the horizontal bottom (48), adjacent to the horizontal bottom, a plurality of ridges (82) running radially outward from the pivot shaft (42), and the horizontal bottom. At least one surface of the arm plate (20) having a peripheral wall (50) having an inner peripheral wall surface (52) and an outer peripheral wall surface (54), and / or wherein the friction material (80) can be made of spring steel. And / or the lever arm (12) has a braking cavity for receiving the arm plate device and / or the plurality of spaced finger elements (22) extending from the periphery (78) are angled upward The finger elements (22) are configured to act as springs that generate a force in the radial direction and are configured to provide a high degree of braking; and Or the friction material (80) co-molded onto the arm plate (20), contaminants are prevented from entering the braking cavity provided sealing means, one or more labyrinth as the sealing means, one or more The belt tensioner according to claim 1, wherein one or more portions of the arm plate (40) contacting the flange or lever arm (12) are used.
  3.   And a pivot bush (60) having an inner peripheral wall surface (62) and an outer peripheral wall surface (64) for aligning and maintaining the lever arm (12), the inner peripheral wall surface (62) being in the housing (46). A pivot bushing (60) axially disposed on the outer surface of the pivot shaft (42) so as to surround the pivot shaft (42) of the sleeve and adjacent to the outer surface of the sleeve (66) extending along the longitudinal axis. And / or a spring bushing (70) disposed axially between the spring element (68) and the lever arm (12), the outer peripheral surface (54) of the vertical peripheral side wall (50) of the housing (46). ) And / or an arm plate having an outer peripheral surface corresponding to the circumference of the outer peripheral surface and an inner peripheral surface corresponding to the outer peripheral wall of the tubular proximal end (58) of the lever arm. (20) is provided between the lever arm (12) and is an arm plate bush (40) for aligning and maintaining the lever arm, forming a notch (41) to form the arm plate bush The belt tensioner according to claim 1 or 2, further comprising an arm plate bush (40) that engages the brake cavity with tension.
  4. The pulley (30) has an outer peripheral surface having a plurality of ridges (88) and recesses (90) alternately running in the circumferential direction around the peripheral surface of the pulley (30), and the pulley (30 The pulley (30) on the hub on the end (56) of the lever arm (12) using attachment means (32) that can run through the axial opening of the The belt tensioner according to any one of claims 1 to 3, wherein the belt tensioners can be connected .
  5.   The belt tensioner according to any one of claims 1 to 4, wherein the spring element (68) is a coil spring which can be made of steel.
  6. In an assembly method of a belt tensioner (10) having an integral braking device,
    A housing (46) having a pivot shaft (42) extending along the longitudinal axis and forming an outer shaft end;
    A pivot bush (60) is disposed adjacent to the pivot shaft (42) of the housing (46);
    A coil spring element (68) is disposed around the pivot shaft (42);
    An annular spring bush (70) is disposed axially adjacent to the coil spring element (68),
    A lever arm (12) having a distal end (56) and a tubular proximal end (58) on the pivot shaft (42), the tubular proximal end extending into the housing (46) and connected thereto An arm (12),
    (A) An arm plate (20) having a cup-shaped cavity peripheral portion (78) and a plurality of separating finger elements (22), and the plurality of separating finger elements (22) extending from the peripheral portion (78) An arm plate (20) configured to be angled upward, and configured such that these finger elements (22) act as springs that generate a force in the radial direction and provide a high degree of braking, and (B) Friction provided between the lever arm (12) and the arm plate (20), and forming at least one contact region with high friction between the lever arm (12) and the arm plate (20). Disposing an arm plate device having material (80);
    A pulley (30) receives an endless drive belt at the end (56) of the lever arm (12) and applies tension to the endless drive belt when the lever arm (12) is rotated in the belt tension direction. A pulley apparatus having a pulley (30) having a plurality of ridges (88) running in a circumferential direction around the outer peripheral surface of the pulley (30) and an outer peripheral surface (30) having alternating recesses (90) The housing (46), the pivot bush (60), the coil spring (68), the spring bush (70), the lever arm (12), the arm plate device and the pulley (30) A belt tensioner (10) characterized by having an integrated braking device characterized by assembling a belt in a series of steps Law.
  7. The above series of steps
    ( 1 ) disposing the pivot bush (60) adjacent to the pivot shaft (42) of the housing (46);
    ( 2 ) positioning the coil spring (68) around the pivot shaft (42) of the housing (46) and connecting the coil spring to the housing;
    ( 3 ) positioning the spring bush (70) adjacent to the coil spring (68) positioned as described above;
    ( 4 ) positioning the lever arm (12) on the pivot shaft (42) such that the tubular end (58) extends into the housing (46);
    The assembly method according to claim 6, further comprising: ( 5 ) connecting the arm plate to the lever arm (12); and ( 6 ) attaching the pulley device to the end (56) of the lever arm (12). .
  8.   The housing (46) has a horizontal bottom (48) and a peripheral wall (50) extending vertically from the horizontal bottom and having an inner peripheral wall surface (52) and an outer peripheral wall surface (54). 46) further has a plurality of internal ridges (82) running radially to the horizontal bottom (48), and / or the pivot bush (60) further aligns the lever arm (12) The assembly method according to claim 7, further comprising an outer peripheral wall surface (64) to be maintained, wherein the pivot bush (60) is provided on an outer surface of the pivot shaft (42) of the housing (46) and extends along the longitudinal axis. .
  9. 9. The coil spring element (68) is connected to the housing (46) and the lever arm (12) so that the lever arm can be rotated in the belt tension direction about the longitudinal axis. Assembly method.
  10. In the step ( 5 ), the arm plate device is positioned in the housing (46) and on the pivot shaft (42), and the arm plate device aligns the cup-shaped spring steel arm plate (20) and the lever arm. And has a friction material (80) having an opening provided between the arm plate (20) and the lever arm (12) to maintain it, and the arm plate device comprises:
    (A) An arm plate (20) having a cup-shaped cavity having a peripheral portion (78) and a plurality of separating finger elements (22), wherein the plurality of separating finger elements ( 22) is formed with an angle upward, and the finger elements (22) are configured to act as springs that generate a force in the radial direction and are configured to provide a high degree of braking. And (b) provided between the plurality of separating finger elements (22) and the lever arm (12), and having at least one friction between the lever arm (12) and the arm plate (20). 10. Assembly method according to any of claims 7 to 9, comprising a friction material (80) forming two contact areas.
JP2004522993A 2002-07-18 2003-06-11 Belt tensioner with integral braking device Expired - Fee Related JP4417253B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/198,214 US7186196B2 (en) 2002-07-18 2002-07-18 Belt tensioner with integral damping
PCT/US2003/018562 WO2004010024A2 (en) 2002-07-18 2003-06-11 Belt tensioner with integral damping

Publications (2)

Publication Number Publication Date
JP2005533228A JP2005533228A (en) 2005-11-04
JP4417253B2 true JP4417253B2 (en) 2010-02-17

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Country Status (11)

Country Link
US (1) US7186196B2 (en)
EP (1) EP1552189B1 (en)
JP (1) JP4417253B2 (en)
KR (1) KR100681599B1 (en)
CN (1) CN100489345C (en)
AU (1) AU2003243528B2 (en)
BR (1) BR0312753A (en)
CA (1) CA2492025C (en)
ES (1) ES2377561T3 (en)
MX (1) MXPA05000755A (en)
WO (1) WO2004010024A2 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005028918A2 (en) * 2003-09-13 2005-03-31 Dayco Products, Llc One-way clutched damper for automatic belt tensioner
US8702543B2 (en) * 2005-01-20 2014-04-22 Dayco IP Holding, LLC Belt tensioner
EP1861635B1 (en) * 2005-03-21 2010-11-24 Litens Automotive Partnership Belt tensioner with wear compensation
WO2006105656A1 (en) * 2005-04-08 2006-10-12 Litens Automotive Partnership Tensioner with molded arm
US7494434B2 (en) * 2005-06-15 2009-02-24 Gm Global Technology Operations, Inc. Belt alternator starter accessory drive with dual tensioner
US8075433B2 (en) * 2005-06-28 2011-12-13 Dayco Products, Llc Belt tensioner with damping member
US8002657B2 (en) * 2005-09-01 2011-08-23 Litens Automotive Partnership Low profile tensioner with arcuate spring
JP5242544B2 (en) * 2006-03-22 2013-07-24 ライテンズ オートモーティブ パートナーシップ Flexible drive tensioner
DE102006017287A1 (en) * 2006-04-12 2007-10-18 Litens Automotive Gmbh Spanner for a endless drive
DE102007016007A1 (en) * 2007-04-03 2008-10-09 Schaeffler Kg Automatic clamping system for use in internal combustion engine of motor vehicle, has spreading unit formed as auxiliary aid arranged between housing part and arm that is spaced in mounting position opposite to part
US8684872B2 (en) * 2007-05-01 2014-04-01 Litens Automotive Partnership Wear compensated tensioner
US7803078B2 (en) * 2008-03-20 2010-09-28 The Gates Corporation Tensioner
US8529387B2 (en) * 2008-04-30 2013-09-10 Dayco Ip Holdings, Llc Pulley with asymmetric torque-sensitive clutching
US7931552B2 (en) * 2008-04-30 2011-04-26 Dayco Products, Llc Pulley with torque-sensitive clutching
US8784244B2 (en) * 2008-04-30 2014-07-22 Dayco Ip Holdings, Llc Pulley with asymmetric torque-sensitive clutching
US20090286636A1 (en) * 2008-05-13 2009-11-19 Alexander Serkh Sealed tensioner
US20100069185A1 (en) * 2008-09-18 2010-03-18 Ward Peter Alan Tensioner
WO2010037232A1 (en) 2008-10-02 2010-04-08 Litens Automotive Partnership Compact tensioner with sustainable damping
DE102009045880A1 (en) * 2009-10-21 2011-11-17 Robert Bosch Gmbh Method and device for operating a belt drive of a motor vehicle
EP2571697B1 (en) * 2010-05-17 2016-11-16 Memjet Technology Limited System for distributing fluid and gas within printer
US8888627B2 (en) 2010-05-25 2014-11-18 Dayco Ip Holdings, Llc One-way damped over-arm tensioner
CN102133599B (en) * 2010-12-27 2012-10-24 重庆江利圣特机械制造有限责任公司 Die for riveting automobile tension pulley assembly
US8523721B2 (en) 2011-04-06 2013-09-03 National Oilwell Varco, L.P. Belt tensioner
US20140287860A1 (en) * 2011-10-26 2014-09-25 Litens Automotive Partnership Tensioner with damping structure made from two components with no rotational play therebetween
US9777806B2 (en) 2012-03-28 2017-10-03 Dayco Ip Holdings, Llc Sealed belt tensioning device
US9249866B2 (en) 2013-03-15 2016-02-02 Dayco Ip Holdings, Llc Belt tensioner for a power transmission belt system
WO2014183200A1 (en) * 2013-05-14 2014-11-20 Litens Automotive Partnership Tensioner with improved damping
EP2955414A1 (en) * 2014-06-13 2015-12-16 Aktiebolaget SKF Tensioning device and method for assembling such a tensioning device
CN104806715A (en) * 2015-04-07 2015-07-29 温州天纳福汽车轴承股份有限公司 Tension roller with sealing element
US10683914B2 (en) * 2018-02-14 2020-06-16 Gates Corporation Tensioner

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924483A (en) 1974-11-25 1975-12-09 Gen Motors Corp Belt driven accessory for vehicles with automatic belt tensioner
US4473362B1 (en) 1981-07-08 1991-07-09 Litens Automotive Inc
US4661087A (en) * 1984-08-23 1987-04-28 Dayco Products, Inc. Method of making a belt tensioner having a biased annular pad of friction material for dampening purposes
US4696663A (en) 1986-04-14 1987-09-29 Dyneer Corporation Belt tensioner
US5011460A (en) * 1989-03-16 1991-04-30 Nippon Seiko Kabushiki Kaisha Belt tensioner with elastic damping feature
US5030172A (en) 1989-09-06 1991-07-09 Dayco Products, Inc. Belt tensioner and method of making the same
US5083984A (en) 1991-02-27 1992-01-28 Dayco Products, Inc. Tensioner for a power transmission belt and method of making the same
US5205792A (en) 1991-02-27 1993-04-27 Dayco Products, Inc. Tensioner for a power transmission belt and method of making the same
US5169368A (en) 1991-02-27 1992-12-08 Dayco Products, Inc. Tensioner for a power transmission belt and method of making the same
US5129864A (en) 1991-02-27 1992-07-14 Dayco Products, Inc. Tensioner for a power transmission belt and method of making the same
US5190502A (en) * 1992-02-07 1993-03-02 Dayco Products, Inc. Belt tensioning system, belt tensioner therefor and methods of making the same
JP2989090B2 (en) * 1993-04-30 1999-12-13 光洋精工株式会社 Auto tensioner
JP2891445B2 (en) * 1993-04-30 1999-05-17 光洋精工株式会社 Friction damping device
US5443424A (en) 1994-10-20 1995-08-22 Dayco Products, Inc. Belt tensioner and method of making the same
DE19523647A1 (en) * 1995-06-29 1997-01-02 Schaeffler Waelzlager Kg Tensioning device for traction devices such as belts and chains
US5632697A (en) 1995-12-18 1997-05-27 The Gates Corporation Damping mechanism for a tensioner
US5718649A (en) 1996-02-16 1998-02-17 Dayco Products, Inc. Tensioner for a power transmission belt and method of making same
JP2002525523A (en) 1998-09-18 2002-08-13 ライテンズ オートモーティブ パートナーシップ Belt tensioner and mounting method thereof
US6206797B1 (en) 1999-08-13 2001-03-27 Dayco Products, Inc. Belt tensioner with flexible armplate
US6217470B1 (en) 1999-08-13 2001-04-17 Dayco Products, Inc. Belt tensioner with increased bushing surface
US6231465B1 (en) * 1999-08-13 2001-05-15 Dayco Products, Inc. Belt tensioner assembly with unidirectional damping
US6565468B2 (en) * 1999-12-21 2003-05-20 The Gates Corporation Tensioner with damping mechanism
US6863631B2 (en) * 2001-12-20 2005-03-08 Dayco Products, Llc Unidirectional motion asymmetric damped tensioner

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ES2377561T3 (en) 2012-03-28
AU2003243528A1 (en) 2004-02-09
KR100681599B1 (en) 2007-02-09
CN100489345C (en) 2009-05-20
MXPA05000755A (en) 2005-04-19
WO2004010024A3 (en) 2004-04-15
EP1552189A2 (en) 2005-07-13
CA2492025C (en) 2011-01-04
CA2492025A1 (en) 2004-01-29
EP1552189B1 (en) 2011-12-14
BR0312753A (en) 2005-07-26
KR20050028035A (en) 2005-03-21
JP2005533228A (en) 2005-11-04
US20040014542A1 (en) 2004-01-22
EP1552189A4 (en) 2009-09-09
WO2004010024A2 (en) 2004-01-29
AU2003243528B2 (en) 2007-11-29
US7186196B2 (en) 2007-03-06

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